20377728

素因数分解:

$2^7\times 3^2\times 7^2\times {\mathrm{19}}^2$

素因数の和:72

約数の個数: 216

約数和(自身を含む): 71991855

約数和(自身を除く): 51614127

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 32, 36, 38, 42, 48, 49, 56, 57, 63, 64, 72, 76, 84, 96, 98, 112, 114, 126, 128, 133, 144, 147, 152, 168, 171, 192, 196, 224, 228, 252, 266, 288, 294, 304, 336, 342, 361, 384, 392, 399, 441, 448, 456, 504, 532, 576, 588, 608, 672, 684, 722, 784, 798, 882, 896, 912, 931, 1008, 1064, 1083, 1152, 1176, 1197, 1216, 1344, 1368, 1444, 1568, 1596, 1764, 1824, 1862, 2016, 2128, 2166, 2352, 2394, 2432, 2527, 2688, 2736, 2793, 2888, 3136, 3192, 3249, 3528, 3648, 3724, 4032, 4256, 4332, 4704, 4788, 5054, 5472, 5586, 5776, 6272, 6384, 6498, 7056, 7296, 7448, 7581, 8064, 8379, 8512, 8664, 9408, 9576, 10108, 10944, 11172, 11552, 12768, 12996, 14112, 14896, 15162, 16758, 17024, 17328, 17689, 18816, 19152, 20216, 21888, 22344, 22743, 23104, 25536, 25992, 28224, 29792, 30324, 33516, 34656, 35378, 38304, 40432, 44688, 45486, 46208, 51072, 51984, 53067, 56448, 59584, 60648, 67032, 69312, 70756, 76608, 80864, 89376, 90972, 103968, 106134, 119168, 121296, 134064, 138624, 141512, 153216, 159201, 161728, 178752, 181944, 207936, 212268, 242592, 268128, 283024, 318402, 323456, 357504, 363888, 415872, 424536, 485184, 536256, 566048, 636804, 727776, 849072, 970368, 1072512, 1132096, 1273608, 1455552, 1698144, 2264192, 2547216, 2911104, 3396288, 5094432, 6792576, 10188864, 20377728]

約数ペア:

[(1, 20377728), (2, 10188864), (3, 6792576), (4, 5094432), (6, 3396288), (7, 2911104), (8, 2547216), (9, 2264192), (12, 1698144), (14, 1455552), (16, 1273608), (18, 1132096), (19, 1072512), (21, 970368), (24, 849072), (28, 727776), (32, 636804), (36, 566048), (38, 536256), (42, 485184), (48, 424536), (49, 415872), (56, 363888), (57, 357504), (63, 323456), (64, 318402), (72, 283024), (76, 268128), (84, 242592), (96, 212268), (98, 207936), (112, 181944), (114, 178752), (126, 161728), (128, 159201), (133, 153216), (144, 141512), (147, 138624), (152, 134064), (168, 121296), (171, 119168), (192, 106134), (196, 103968), (224, 90972), (228, 89376), (252, 80864), (266, 76608), (288, 70756), (294, 69312), (304, 67032), (336, 60648), (342, 59584), (361, 56448), (384, 53067), (392, 51984), (399, 51072), (441, 46208), (448, 45486), (456, 44688), (504, 40432), (532, 38304), (576, 35378), (588, 34656), (608, 33516), (672, 30324), (684, 29792), (722, 28224), (784, 25992), (798, 25536), (882, 23104), (896, 22743), (912, 22344), (931, 21888), (1008, 20216), (1064, 19152), (1083, 18816), (1152, 17689), (1176, 17328), (1197, 17024), (1216, 16758), (1344, 15162), (1368, 14896), (1444, 14112), (1568, 12996), (1596, 12768), (1764, 11552), (1824, 11172), (1862, 10944), (2016, 10108), (2128, 9576), (2166, 9408), (2352, 8664), (2394, 8512), (2432, 8379), (2527, 8064), (2688, 7581), (2736, 7448), (2793, 7296), (2888, 7056), (3136, 6498), (3192, 6384), (3249, 6272), (3528, 5776), (3648, 5586), (3724, 5472), (4032, 5054), (4256, 4788), (4332, 4704)]